The category "Plasma Desktop Widgets" shows up twice in the category list, though the second one is empty. Reproducible: Always
Git commit f537e8993ce1ae28a015e9d285683f047901a3b7 by Aleix Pol. Committed on 18/03/2016 at 12:55. Pushed by apol into branch 'master'. Make sure Plasma Desktop Widgets categories are being merged properly M +3 -1 libdiscover/Category/Category.cpp M +1 -0 libdiscover/backends/PackageKitBackend/packagekit-backend-categories.xml http://commits.kde.org/discover/f537e8993ce1ae28a015e9d285683f047901a3b7
I just tested and can confirm the fix.